Earth's valleys tell an ancient story of ice and power. Over millions of years, massive glaciers have carved, sculpted, and transformed the landscape in ways that still take researchers' breath away.

Three-dimensional maps of glacier surfaces across Greenland reveal that cracks are growing rapidly where land ice meets the sea — and climate change is to blame. Using satellite images gathered in ...

Glaciers are often described as slow-moving rivers of ice, but some can accelerate to remarkable speeds under certain conditions. Recent satellite observations confirm that Jakobshavn Isbræ in western ...

Satellite images show that, after decades of stability, a major glacier draining the Greenland ice sheet has dramatically increased its speed and retreated nearly five miles in recent years. These ...

Water hidden beneath Arctic glaciers is moving far more than scientists realized. Now there is a map to prove it.

MISSOULA — To be a glacier, a field of ice must move. Seen from space, they also appear to breathe. A pair of new animations from NASA’s Earth Observatory compile three decades of satellite images ...